非法参数异常 - 在 Netbeans 上运行但不在 Tomcat 上作为 War 文件运行的项目

Question

I made a project on Netbeans on my local machine with JDK 1.7 (32-bit) On running the application (using tomcat 8.0 server on netbeans), it works perfectly on http://localhost:8080/WebApplication1 .

I copied the war file from the dist directly and transferred it to my Windows VM server with tomcat 8.0 and jdk 1.8 installed (64-bit). Then the war file was uploaded through tomcat's manager web app.

Note: 'localhost:8080/' and 'localhost:8080/manager' ran without any issue.

However, when I go and run the application ( http://localhost:8080/WebApplication1 ) - it throws the following errors.

org.apache.jasper.JasperException: Unable to compile class for JSP
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:579)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

java.lang.IllegalArgumentException: Page directive: invalid value for import
    org.apache.jasper.compiler.Node$PageDirective.validateImport(Node.java:610)
    org.apache.jasper.compiler.Node$PageDirective.addImport(Node.java:593)
    org.apache.jasper.compiler.Parser.parsePageDirective(Parser.java:344)
    org.apache.jasper.compiler.Parser.parseDirective(Parser.java:458)
    org.apache.jasper.compiler.Parser.parseFileDirectives(Parser.java:1782)
    org.apache.jasper.compiler.Parser.parse(Parser.java:136)
    org.apache.jasper.compiler.ParserController.doParse(ParserController.java:227)
    org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:117)
    org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:194)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

The <%page import %> I have in my JSPs are 'java.util.*' and 2 java classes which are part of my project. Rest my java classes import some 'java.' packages

Additional info:

• I have set 'Path' environment variable to 'C:\\Program Files\\Java\\jdk 1.8\\bin'
• I have tried including 'org.apache.jasper.jar' to my project (& war) too
• jdbc4.jar is also imported in library

What seems to be the problem? I am unable to make out the source of the problem. Is it because of 32-bit vs 64-bit? or jdk 1.7 vs 1.8? or missing environment variable? or problem in tomcat configuration? something else?

Answer 1

Problem was in my import statement, which included:

Original code

 <%@page contentType="text/html" pageEncoding="UTF-8" language="java" import="java.util.*,mypackage.one.*,mypackage.two.*;"%>

The issue was the ; at the end of the import statement!

Corrected code:

 <%@page contentType="text/html" pageEncoding="UTF-8" language="java" import="java.util.*,mypackage.one.*,mypackage.two.*"%>

Answer 2

使用 Tomcat 7.0.21 某些 tomcat 版本会出现此错误，我也遇到了与 7.0.59 版本相同的问题。